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Is it ok to use a size-26 bar with a 25.8 dia. clamp????(8 posts)

Is it ok to use a size-26 bar with a 25.8 dia. clamp????woodes
May 8, 2002 6:33 AM
Is a stress-riser issue that dangerous when the difference is (in my opinion) that minimal?
Depends on the stembrider
May 8, 2002 7:12 AM
You might be able to get away with it, especially if the stem is an open-faced variety. I've done it successfully in the past, with a standard (steel) quill type. The bolt hole allowed enough rotation that the bolt didn't bend. Of course, I've had unsuccessful attempts as well, where the bolt broke. So it's kind of a crap shoot. Just don't even try a 26.2 in that stem.
No worry...I thinkNessism
May 8, 2002 7:13 AM
I've run this combination for years without issue. If the bars and/or stem is on the far side of the tolerance range though, it may not work.

For example:

26.0 bars are acutally 26.2 mm
25.8 stem is actually 25.6 mm

In a situation like this, the parts may still be in spec., but they will not fit together very well.

Ed
couldn't get mine to workslow-ron
May 8, 2002 7:57 AM
I tried putting a Cinelli Contact bar 26.0 into a 3t quill stem 25.8 and there was no way I could get the sucker in there. As mentioned above, I think it depends on which way the tolerances run.
I thought Cinelli's were 26.2. (nm)brider
May 8, 2002 9:30 AM
.
Hmmmm,slow-ron
May 8, 2002 10:29 AM
I'm going to throw some calipers on it tonight to double check. Egg on my face if it is.
Old school Cinelli's were 26.4 mmNessism
May 8, 2002 11:26 AM
They changed to 26.0 mm a few years ago.

Ed
Some is, some ain't (nm)Spoke Wrench
May 8, 2002 11:28 AM